Description
Eradicate Crankcase Oil Leaks on V18 Industrial Engines
Operating massive 78-liter equipment requires flawless lubrication management. The aftermarket oil pan gasket kit matching OEM 4955390 is specifically engineered to seal the expansive lower crankcase of the QSK78 architecture. Utilizing a rigid steel core coated with high-temperature molded elastomers, this sealing solution prevents structural deflection and eliminates catastrophic oil loss during violent mechanical vibrations and heavy chassis articulation.
Engineered for Maximum Fluid Containment
To guarantee a permanent seal across the massive oil pan flange, the 4955390 replacement kit undergoes rigorous pressure and thermal stress testing. It maintains absolute clamping force across wide bolting spans without requiring supplemental RTV silicone, dramatically reducing overhaul turnaround times.
| Engineering Parameter | Specification Value |
| Exact Replacement | 4955390 |
| Compatible Architecture | Cummins QSK78 (78L V18) |
| Core Structure | Stamped Steel Carrier with Molded Elastomer |
| Max Fluid Capacity Rating | Supports high-capacity sumps exceeding 300 Liters |
| Thermal Operating Range | -40°C to +175°C (-40°F to +347°F) |
| Primary Industry Focus | 400-ton mining excavators, commercial marine, megawatt generators |
By preventing localized flange crushing and actively resisting synthetic oil degradation, this heavy-duty oil pan seal maximizes engine uptime. It provides a dry, leak-free bottom end that drastically reduces environmental contamination risks and costly fluid top-offs on remote job sites.
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